Combined cushion and pneumatic tire and rim therefor



Mar. 6, 1923. 1,447,739

E. E. THRASHER COMBINED CUSHION AND PNEUMATIC TIRE END RIM THEREFORFiled Apr. 12, 1922 Fig.2. Fsefi.

, EMQEJVWwM invention isbetter understood, the same coin sists in. thenovel construction, combination and arrangement of parts hereinaftermore Patented Mar. 6, 1923.

humans stares i uana nniunn n. (Ta-imam, or CUMBERLAND, 'iaenvnnivn]ooiuninnnousnroivann PNEUMATIC rIn-E Ann RIM rnnnnron.

' Application filed. Apri112,,1922. serial-155551374.

To all whom it may concern. I i 1 Be it known that I, 'ELMER E.THRASHER, a citizen of the UnitedStates of America, residing atCumberland, in the county of Allegany and State ofli iaryland, have invented certain new and useful Improvements is a specification. 1

This inventlon relates and Rims Therefor, of which the i'ollowing andpneumatic tires and has particular ref- The primary object of theinvention residesin the provision of a combined cushion and pneumatictire whereinthe solid block or tread'portio-n is positioned outwardly ota sectional rim supporting the tire while the pneumatic inner tubepositioned in the tire, occupies a-"position entirely enclosed by thesectional rim.

The invention further embodies in a tire of the type above set forth, asectional rim of the clincher type having the inner sides thereofinterlockingly' connected, and secured to the telly of a wheelof eitherthe spoke or disk type, the pneumatic tube of the tire beingdisposedentirely within the sectional rim and spaced. from the tread of thesolid portion'of the tire to prevent punc tures of the tube and blowoutsof the tire.

With these general objects in view and others that will appear as thenature of the fully described illustrated in the accompanying drawings,and pointed out in the appended claims. I

In the drawings:

Figure 1 is a fragmentary side elevational view of a combined cushionand pneumatic tire, and rim constructed in accordance with the presentinvention.

Figure 2 is a cross-sectional view taken on line Ill-H of Figure 1showing the combined cushion and pneumatic tire, with the pneumaticsection confined within the sectional rim supported on a wheel folly andfurther showing by dotted lines the position to certain new and usefulimprovements -incombinedcushion assumed by the tire when underCOIIIPIQS- sl-on Figured is a cross-sectional view of one of the rimsections showing the spring fi1i- 'gers carried byone section for enging the-nether rim section,

in Combined Cushions and Pneumatic Tires "Figure 4 is a fragmentary planview oi the rimsectioii shown in Figured i 1 Fi'gure 5 is across-sectional view of the other r m section or clamping ring. Figure 61s a iragmentary side elevational shown in Figure 5, and Figure 7 is afragmentary I cross-sectional view of a portion of the tire showing theinner side thereof split at itsficenter line, and shown inopenpositionby dotted lines for receiving the pneumaticinner tube.

Referringmore indetail to the ammo panying drawing there is illustrateda combined cushion and pneumatic tire supported in a sectional rim that15 mounted upon and secured to the telly. of a wheel, the tire embodyingasolid block or tread-portion 1,

having a reduced intermediate neckQ which may be reinforcedfby fabric orclothas shown in Figure 1, while the inner end of the neck 2, as shownin'Figures 2 and 7, carries reversely curved side section 3 havingoverlapping ends 4: at the central circumferential line of the tire. Theside sections 3 form a channel, or pocket 5 for the reception of apneumatic inner tube 6 ofsubstantially oval formation in cross section,when under inflation as shown in Figure 2, the same being provided withthe usual inflating valve sternti for purposes presently to appear, theouter sides of the side sections 3 at their point of connection with thereduced tire neck 2 are provided witlranuular grooves or channels 7 asshown in Figure2.

The sectional rim for supporting the combined cushion and pneumatic tireis of the clincher type and embodies sections 8 and 9, the rim section 8having a fiat annular felly engaging band 10, the upper end of thecurved side of the section 8 being provided with a relatively wide flatwall 11 carrying a bead 12 at the lower end thereof for engagement inthe groove 7 at the point of connection between the tire neck 2 and theside sec tion 8, as shown more clearly in Figures 2 and 3. The free edge13 of the rim section 8 "VieW of'the rim section or clamping rlngas isbeveled upon the lower side thereof as at 9 carrying an annular flange18 vprovided with spaced openings 19 defining shoulders; 20 for thereception of thespring fingers. l5,

and for engagement by the finger hooks 17 carried bythe spring fingers.The-flange 18.

is provided with a series iotspacedopenings 21 theflange 18 beingposltioned for. engagement withv the adjacent sideroi' awheelielly 22with bolts 23 passing through jthefelly and flange openings21ior thereceptionuof the retaining nuts 24 asshownin Eigures l and 2. lVhile.the tire isfillustrated as being n'iounted upon a wheel of the-spoketype it is understood that the same may as readily be associated: withdisk or wire wheels. v as From the above detailed description of-the,device it is believedthatthe constr-uction and operation thereofwill'at; once'be apparent, it

being noted that the tube dis positionedin the tire channel o whenthetire isremoved. from the sectional rim,vby spreading apart t-llGSlClGsections 3 of thetire. asshown in Figure 'F by dotted lines, and when sodisposed, the pneumatic section of the tire is positionedin therimsection 8. If desired,

the rim section 8 andtire supportedthereby may bejpositioned on "thetelly 2, or if preferred, the otherarimsection or clamping ring may bemounted into engagement with the rimsection 8 to cause the springfingers 15 to be -projected through the openings 19 in the rim section 9with thehooks 17 engaging-the opening shoulders .20 to retain thesections in assembled formation, the bolts 23 passing through the fopenings 21 I in the} flange 18 oft-he rim sectionw9 securelyholding thesectional rim and tire -onthe felly 22 of the wheel. When the tire 1 is,under compression, the neck" portion .2 thereof moves inwardlyof therim sections-8 and 9 to compress the inner tube .6 and tire section 1 asshown by dotted lines in Figure 2, the

l relatively wide flattened walls 11 of-the rim bined cushion and.pneumatic; tire, reversely duced1 neck zOf the tire v to guide 5 the;moveimentswofjthe tireurelativeato thevarim, and

curved side sections carriedby; thezinner: edge sections 8 and 9 forminga guide for the neck 2 or the tire and to prevent lateral creepingorshifting movement of the tire, relative to the rimtheirimibeadi12rextending into the tire grooves 7 as shown in Figure2.wi l1 effectively retain the tire in its proper position onth'erinrsections 8 and 9. In removing the tire fromthefelly', the bolts 23may be disengaged from the rim section 9 and the springfingers 15 willthen bereleased'to permit the removal of the rim section or clampingmeans'9; V

By positioninglthe inner tube z6swithin the sectional "rim the same; :isfully protected from injury, while in case not emergency the relativelylarge cushion portion, of the tire wigl function shoulddamageresulttothe V tu e. 1 t i "VVhatgis claimed as newis::.-=1 l 1. In a tire of thetype described, a, comcurved sides carried by the-inneriedgelof thecushion'portion of the tire; defining 'a cha r ,nel 'ior the, pneumaticportion of the tire, i3

reduced neck portion; between the ,tire; tread and curved sides,sectional .rim inclosing :80 a

the pneumatic portion! ,0 tithe tire, the; outer edges of the rim:seotionsuhavinggflattened iaces engaging the OPPOSllIQ SlClGSflf'itheremeans for preventing glateral creeping movements ofathe tire. a

2; In a tire; ofithe type described, a combined cushion and .:pneumatictire, jreversely.

of the cushion portion Qfrfih.6 tire defining a I channel for-:thereception-of aniinner tube, a. reducedgneck portion between thetireztread andsideseetions, at-sectional rim inclosing the pneumaticportion (of the tire, the outer edges lot the rim sections havingiflattened faces engaging the .oppositeisides of ithe reduced neckofthe"tire;to guide the movements of thetire relative to=the rim, saidneckihaving ,annular grooves therein at the point ofconnection with theside sections, and? annular beads depending :from the outer endsof-therim sections extending into-:said

channels to prevent lateral creeping :-movements of the tire.

Intestimony whereofI affixmysignature.

ELMER E. THRASHER.

